Home / 120,529,328.40-166,325,821.20-65,525,209.20

Finding the Fourth Proportional to 120,529,328.40, 166,325,821.20 and 65,525,209.20

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Solution

The fourth proportional to 120,529,328.40, 166,325,821.20 and 65,525,209.20 is: 90,422,259.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,529,328.40 : 166,325,821.20 = 65,525,209.20 : x
  2. Step 2: Convert to fraction form
    120,529,328.40/166,325,821.20 = 65,525,209.20/x
  3. Step 3: Cross multiply
    120,529,328.40x = 166,325,821.20 × 65,525,209.20
  4. Step 4: Simplify right side
    120,529,328.40x = 10,898,534,229,491,794
  5. Step 5: Solve for x
    x = 10,898,534,229,491,794/120,529,328.40
  6. Step 6: Final answer
    x = 90,422,259.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.